Conservative Management of Spontaneous Isolated Dissection of the Superior Mesenteric Artery

Figure 1

Computed tomographic angiography (CTA) findings in a 55-year-old woman with spontaneous isolated dissection of the superior mesenteric artery (SMA) at the initial presentation and at the 9-month follow-up exam. (a, b) Axial images show the dissection flap (long arrow) in the main trunk of the SMA and complete obstruction of the SMA, due to thrombosis (long empty arrow), at the initial presentation. (c, d) Axial CTA images at the 9-month follow-up exam show the SMA with a patent lumen at the proximal portion (short arrow) and a completely obstructed lumen at the midportion (short empty arrow).

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